A nurse is educating a client who has multiple sclerosis about glia cells. Which of the following statements by the client indicates an understanding of the teaching?
"Glia cells produce myelin that insulates nerve fibers."
"Glia cells transmit electrical impulses along nerve fibers."
"Glia cells secrete neurotransmitters that communicate with other cells."
"Glia cells destroy pathogens and foreign substances in the nervous system."
The Correct Answer is A
Choice A reason:
This is a correct answer. Glia cells are supportive cells that provide insulation, protection, nutrition, and regulation for neurons. One type of glia cells, called oligodendrocytes, produce myelin that insulates nerve fibers and increases the speed of electrical impulses.
Choice B reason:
This is an incorrect answer. Glia cells do not transmit electrical impulses along nerve fibers. This is the function of neurons, which are the primary cells of the nervous system.
Choice C reason:
This is an incorrect answer. Glia cells do not secrete neurotransmitters that communicate with other cells. This is also the function of neurons, which release neurotransmitters at the synapses to transmit signals to other neurons, muscles, or glands.
Choice D reason:
This is an incorrect answer. Glia cells do not destroy pathogens and foreign substances in the nervous system. This is the function of microglia, which are a type of immune cells that reside in the nervous system and act as macrophages.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason:
This is an incorrect answer. The nurse should not give information that might overwhelm or distress the client without assessing their readiness to learn.
Choice B reason:
This is an incorrect answer. The nurse should not give false reassurance or minimize the client's condition.
Choice C reason:
This is an incorrect answer. The nurse should not ask questions that might confuse or frustrate the client who has memory impairment.
Choice D reason:
This is a correct answer. The nurse should use therapeutic communication techniques such as exploring feelings, reflecting, and active listening to provide emotional support and establish rapport with the client.
Correct Answer is ["A","B","C","E"]
Explanation
Choice A reason:
This is a correct answer. A spinal cord injury at the level of T6 affects the sensory nerves that innervate the lower half of the body, resulting in loss of sensation below the waist.
Choice B reason:
This is a correct answer. A spinal cord injury at the level of T6 affects the motor nerves that innervate the lower half of the body, resulting in paralysis of the lower extremities.
Choice C reason:
This is a correct answer. A spinal cord injury at the level of T6 affects the autonomic nerves that innervate the bladder and bowel, resulting in impaired bladder and bowel control.
Choice D reason:
This is an incorrect answer. A spinal cord injury at the level of T6 does not affect the cranial nerves that innervate the pharynx and esophagus, which are responsible for swallowing.
Choice E reason:
This is a correct answer. A spinal cord injury at the level of T6 affects the autonomic nerves that innervate the sweat glands and thermoregulatory centers, resulting in decreased sweating and shivering.
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